Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 | /* arch/arm/mach-msm/vreg.c
*
* Copyright (C) 2008 Google, Inc.
* Author: Brian Swetland <swetland@google.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/debugfs.h>
#include <mach/vreg.h>
#include "proc_comm.h"
struct vreg {
const char *name;
unsigned id;
};
#define VREG(_name, _id) { .name = _name, .id = _id, }
static struct vreg vregs[] = {
VREG("msma", 0),
VREG("msmp", 1),
VREG("msme1", 2),
VREG("msmc1", 3),
VREG("msmc2", 4),
VREG("gp3", 5),
VREG("msme2", 6),
VREG("gp4", 7),
VREG("gp1", 8),
VREG("tcxo", 9),
VREG("pa", 10),
VREG("rftx", 11),
VREG("rfrx1", 12),
VREG("rfrx2", 13),
VREG("synt", 14),
VREG("wlan", 15),
VREG("usb", 16),
VREG("boost", 17),
VREG("mmc", 18),
VREG("ruim", 19),
VREG("msmc0", 20),
VREG("gp2", 21),
VREG("gp5", 22),
VREG("gp6", 23),
VREG("rf", 24),
VREG("rf_vco", 26),
VREG("mpll", 27),
VREG("s2", 28),
VREG("s3", 29),
VREG("rfubm", 30),
VREG("ncp", 31),
};
struct vreg *vreg_get(struct device *dev, const char *id)
{
int n;
for (n = 0; n < ARRAY_SIZE(vregs); n++) {
if (!strcmp(vregs[n].name, id))
return vregs + n;
}
return 0;
}
void vreg_put(struct vreg *vreg)
{
}
int vreg_enable(struct vreg *vreg)
{
unsigned id = vreg->id;
unsigned enable = 1;
return msm_proc_comm(PCOM_VREG_SWITCH, &id, &enable);
}
void vreg_disable(struct vreg *vreg)
{
unsigned id = vreg->id;
unsigned enable = 0;
msm_proc_comm(PCOM_VREG_SWITCH, &id, &enable);
}
int vreg_set_level(struct vreg *vreg, unsigned mv)
{
unsigned id = vreg->id;
return msm_proc_comm(PCOM_VREG_SET_LEVEL, &id, &mv);
}
#if defined(CONFIG_DEBUG_FS)
static int vreg_debug_set(void *data, u64 val)
{
struct vreg *vreg = data;
switch (val) {
case 0:
vreg_disable(vreg);
break;
case 1:
vreg_enable(vreg);
break;
default:
vreg_set_level(vreg, val);
break;
}
return 0;
}
static int vreg_debug_get(void *data, u64 *val)
{
return -ENOSYS;
}
DEFINE_SIMPLE_ATTRIBUTE(vreg_fops, vreg_debug_get, vreg_debug_set, "%llu\n");
static int __init vreg_debug_init(void)
{
struct dentry *dent;
int n;
dent = debugfs_create_dir("vreg", 0);
if (IS_ERR(dent))
return 0;
for (n = 0; n < ARRAY_SIZE(vregs); n++)
(void) debugfs_create_file(vregs[n].name, 0644,
dent, vregs + n, &vreg_fops);
return 0;
}
device_initcall(vreg_debug_init);
#endif
|